Machine for making paper pails.



F. J. BRUNELL.

MACHINE FOR MAKING PAPER FAILS.

APPLlCATlON FILED AUG.8| 1913. 1,153,198. PatentedSept. 14, 191.

I3 SHEETSSHEET I.

F. 1. BRUNELL. MACHINE FOR MAKING PAPER PAILS1 AP T N FILED AUG-8.1913.

1,153,193. 1 PatentedSept. 14, 1915.,

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APPLICATION FILED AUG.8. I913.

Patented Sept. 14, 1915.

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F- J. BRUNELL.

MACHINE FOR MAKING PAPER PAILS.

APPLICATION FILED AUG.8. 1913.

Patented Sept. 14, 1915.

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MACH I NE FOR MAKING PAPER PAILS. APPLICATION FILED AUG.8. 1913.

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MACHINE FOR MAKING PAPER PAILS.

APPLICATION FILED AUG.8. 1913.

Patented Sept. 14, 1915.

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MACHINE FOR MAKING PAPER PAILS.

APPLICATION FILED AUG.B, I913. 1,153,193. PatentedSept. 14, 1915.

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if C 49 F. J. BRUNELL.

MACHINE FOR MAKING PAPER FAILS.

A PPLICATI ON FILED Aue.8. 1913.

1 1 5 3, 1 93 Patented Sept. 14, 1915.

I3 SHEETS-SHEET 8.

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MACHINE FOR MAKING PAPER PAILS.

APPLICATION FILED AUG.8, 1913.

1,153,193. PatentedSept. 14, 1915.

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MACHINE FOR MAKJ ILS.

APPLICATION FILED I 1,153,193.. PatentedS .4, 1915.

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F. J. BRUNELL.

MACHINE FOR MAKING PAPER PAILS.

APPLICATION FILED AUG.8. 1,913.

Patented Sept. 14, 1915.

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F. J. BRUNELL.

MACHINE FOR MAKING PAPER PAlLS.

APPLICATION FILED AUG.8.1913. 1,153,193. Patented Sept. 14, 1910.

' \3 SHEETSSHEET 12.

F. J. BRUNELL.

MACHINE FOR MAKING PAPER PAILS.

APPLICATION FILED AUG.B.19I3.

Patented Sept. 14, 1915.

I3 SHEETS SHEET 13.

UNITED STATES PATENT OFFICE.

FRANK J. BRUNELL, or CHICAGO, ILLINOIS, ASSIGVNOR or ONELHALF T0 FOREE BAIN,

or LA GRANGE, rumors. I

MACHINE FOR MAKING PAPER PAILS. 91?"? i Application filed August 8, 1913.

To all whom it may concern Be it known that I, FRANK J. BRUNELL, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements'in Machines for Making Paper Pails, of which the following 1s a specification.

My invention relates to improvements in machines for making paper pails.

One of the objects of my invention 1s to provide a machine for making paper pa1ls, such as ice cream containers, which wlll automatically perform all the functions necessary in the construction of such receptacles after the blank, of which the pail is to be 1 formed, has been presented to it by an attendant.

Another object of my inventionis to provide a machine which has the capability to operate upon aplurality of blanks at the same time, whereby the various operations necessary for the construction may be simultaneously performed upon said blanks in their sequential progression through the machine,'thereby to increase the capacity of the 'machine and to apportion a greater length of time to the performance of the various operations, giving the glue time'to set and holding the glued parts, with considerable pressure, in intimate contact during the setting process.

Another ob ect of my invention is generally to improve the construction of such machines. a

More specific objects sought and advantages to be attained by my invention will be apparent to persons skilled in the art from the following description when taken in conjunction with the accompanying drawings, wherein Figure 1 is a longitudinal elevation of the machine, showingthe pail-forming parts in position to receive a blank. Fig. 2 is a plan view of the complete machine. Fig. 3 is a. longitudinal section taken on line 33 of Fig. 2. Fig. 4 is a transverse section taken on line H of Fig. 1. Fig. 5 is an enlarged detail view of an automatic air valve to admit air into the interior of the hollow forming mandrel to blow the completed pail therefrom. Fig. 6 is a cross sectional View of same taken on line 66 of Fig. 5 Fig. 7 is an enlarged detail .ofone'of the Specification of Letters Patent.

' forming mandrels and its associate foldiiig and clamping heads, showing the parts open ready to receive a blank and a blank in place beforebeing folded. Fig. '8 is a view showing the upper folding head in place on the mandrel and two side and the end folds made thereby. Fig. 9 is a similar View showing further movement of-a part of the upper folding head to deflect the depending portions of the blank, shown before deflection in dotted lines in Fig. 8. Fig. 10 is asimilar viewshowing both folding and clampingheads in operativev position with reference to the forming mandrel, and showing the lower clamping head open, in dotted lines. Fig. 11 is an enlarged transverse section taken on line 1l-11 of'Fig. 7. Fig. 12 is a similar section taken on line 12-12 of Fig. 7. Fig. 13 is a similar sec tion taken on line 13-13 of Fig. 8. Fig. 14 is a similar section taken on line j14-14 of Fig. 7. Fig. 15 is a similar section taken on line 15-15 of F ig. 10. Fig. 16 is a similar section taken on line 16-16 of Fig. 1. Fig. 17 is a similar section taken on line. 17-17 of Fig. 1. Fig. 18 is a similar section taken on line 18-18 of Fig. 2. Fig. 19 is a similar section taken on line 1919 of Figs. 1 and 17 Fig. 20 is an enlarged longitudinal section taken on line 20-20 of Fig. 2. Fig. 21 is a similar section taken on line 2 121 of Fig. 2. Fig. 22 is an enlarged section of a detail taken on line 22-22 of Fig. 2. Fig. 23 is a similar section of a detail taken online 23- 23 of Fig. 2. Fig. 24 is an enlarged section of a detail taken on line 2424 of Fig. 17 Fig. 25 is a similar view taken on line 2525 of Fig. 17. Fig. 26 shows a plan view of a blank of which the pail is to be made and before it is folded. Fig. 27 is a perspective view of the completed pail.

In all the views the same reference characters are employed to indicate similar parts.

My machine comprises a plurality of cooperatlng instrumentalities, driven in proper Similar.

Serial No.'783,697. 1;;

time relation to perform their respective mandrels into nested relation with similar previously completed pails.

I will first describe the blank-receiving, paste-applying and taping apparatus and subsequently describe the folding apparatus and its relation to the former.

. A frame 33 having legs 34 supports a table 35 and is provided with a base 36 that is secured to the sub-base 31 by means of cap screws 37 Cross bars 38, between the legs 34, provide bearing supports for the main drive shaft 39. This shaft has secured thereto a beveled gear wheel 40 which is driven .by a coeperating beveled gear wheel 41, secured to the horizontal shaft 42, the proximate end of this shaft finding bearing in the bracket 44. The shaft 42 is the means by which the mechanism of the taping and pasting or glueing machine is driven.

The table 35 is longitudinally slotted, as at 45, to admit a geared segment 46 designed to intermittently drive a longitudinall reciproca table blank-feeding bar 47.- The bar 47 is provided with longitudinal, transversely' projecting ribs 48, that fit into recesses made in the side walls of the longitudinal slot for accommodation of the said bar, so as to prevent the bar from moving out of said slot. The lower surface of the bar is provided with a longitudinally extending rack 49 which may be integral with the said bar or may be attached thereto, but is designed-for intermeshing gear relation with the segment 46 whereby said feed bar is reci rocated. At the rear end of the feed bar 4 is a tapered blank-moving ear 50 located on the said bar. Ata point remote from the ear 50, and in advance thereof is a similar ear 51 the distance between said ears being substantially equal to the greatest length of the blank ofwhich the pail is to be made. The feed bar 47 is to be reciprocated, in proper time relation to the number of revolutions of the driving shaft 42. For accomplishing this resulta gear segment 46 is pivoted, as at 52, and is provided also on its shorter end with agear segment 53 that meshes into a reciprocatable rack 54. The reciprocatable rack-bar 54 has bearings in the frame as at 55 and 56, and terminates at its operative end in a substantially rectangular cam framesuch as that shown in Fig. 25, in cooperation with'a cam 57 that is secured to the shaft 39,93 that when the shaft 39 is rotated a full revolution, the rack bar 54 will be reciprocated the full excursion of its movement thereby oscillating gear segment 46 to reciprocate the feed bar 47, so that for every revolution of the shaft 39 the feed bar 47 will be caused to make one complete reciprocation, dwells intervening between its forward and backward excursions. One ear, 50, feeds the inserted blank forward to the paster and threader, where it is held against reverse movement by a spring detent or latch 50, (Fig. 20) so that when the bar 47 recedes the other car 51,passing beneath the blank engages the rear end of the blank for the urpose of feeding said blank to the folder on the next forward excursion of the feed bar 47.

A'suitably-wide depression or channel 58 is cut into the face of the table 35 and ex-- tends longitudinally thereof to provide guiding means for the 'blanks which are to be fed into the folding machine by the reciprocatable feed bar 47. In Fig. 16 the blank 59 is shown in dotted lines in its position within said depression.

The blank 59 contains a central member 59* which is subsequently to form two sides, 59*, the bottom and top of the completed pail. -The top is to be composed of theflap 59 with a projecting tongue 59, the flap 59 and a cooperating slot 59 for the tongue. The glue receiving tabs 59 are to be vertically extended above the bottom 59 and in the completed pail they will be included between the overlapping end'forming members 59 and 59.- Thetapebail, or handle 59, is threaded through slots 59 made by the machine in the, member 59 before the blank is folded to form the pail, the ends of the tape being glued and held between said wings at the time when these members are pressed together by a subsequently described operation.

At the proper position on the table 35, in rear of Where the blank is to receive its glue, overhanging projections 59 are secured to or are parts of the side walls of the channel 58 to prevent the edges of the blank from rising when the perforators which pass the tape through the blank are being withdrawn from their operative positions.

By referring to Fig. 2 it will be observed that the feed-bar 47 is broken, indicating that itis to be longer, the normal position of the ear 50 on said. feed-bar being displaced somewhat to the righthand side, sufiiciently to permit the insertion of a blank 59 between the ears 50 and 51. At this time the segment 46, which reciprocates the feed bar, is in such position as to be capable of reciprocating the feed bar to the left to the -the shaft 67.

ing mechanism and the glue-applying mechanism, which I will now describe.

A tape 60 is contained upon a reel, or spool, 61, secured to an arbor 62 that finds bearing in the standards 63.-and 64 that arise from the table 35. On the end of the arbor 62 is a friction disk 65 adapted to be driven by an angularly-disposed disk 66 secured to In order to effect constant but yielding frictional contact between the two disks I provide a spring 68 which surrounds the shaft 62 and bears against the friction disk 65 and against a collar 69 that is on the shaft 62. The shaft 62 is provided with a spline 62 (Fig.- 23) in which engages a tongue from the collar 69 so as to positively rotate said collar with the shaft and disk so that frictional engagement is not made between the spring 68 and the standard 63 but is taken by the collar 69 and there is no relative movement between the collar 69, the spring 68 and the disk 65. The object of driving the reel or spool 61 is to unwind the tape so that the tape moving mechanism may not be restrained by any friction interposed by the movement of the spool or reel 61.

- The speed at which the spool 61 may be rotated is adjustable by movement of the friction wheel 66 on the shaft 67 .along the radius of the wheel 65. The shaft 67 is provided with a spline 70 and the wheel 66 is provided with a feather that efiects rotative engagement between said shaft and wheel but permits longitudinal movement of the latter thereon.

The shaft 67 is driven by a chain 71 from the shaft 39. Said chain extends from the sprocket wheel 72 of the shaft 39 to the sprocket wheel 73 on the shaft 67 so that the speed of the shaft 39 and shaft 67 are substantially equal. The shaft 67 has bearings 74 and 75 in the standards 76 and 77 respectively. These standards are fixed to the table 35 by means of'cap-screws 78 and 79, respectively. 7

Transverse extensions 81 and 82 project inwardly from the standards 76 and 77, re spectively, to provide bearings for certain operative instrumentalities. A reciprocateble head 83, (Fig. 17) finds bearing between the extensions 81 and 82 and is provided with two cam-yokes 84 and 85 in which a cam 86, connected to the shaft 67, is re volved, there being one cam in each of said yokes. From a consideration of the cam structure, shown in Fig. 24, it will be noticed that the head 83 will be moved down: wardly whereit will be permitted todwell for a specific time, and will be subsequently moved upwardly after which latter movement there will be a dwell, and, therefore, the head 83 has a dwell of a definite time between each of its downward and upward movements by the operation of the cams.

Carried by the, head 83'are two springpressed, vertically disposed presser foot rods 87 and 88, laterally bent at their ends to form feet 87 and 88, see Fig. 20, and guid- "ed throrigh projecting lugs 89 and held downwardly by the open compression springs 90, being limited by the collar 91. lVhen the head 83 is moved downwardly the presser feet 87 and 88 bear upon the blank 59, which is-then immediately below the head 83. These pressure feet serve to hold the blank in stable position while it is being operated upon by other devices hereinafter described.-

Between the parallel bars 92 and 93 is a reciprocatable, tape-moving head 94. This head engages the end of the tape 60 and moves it transversely across the blank for insertion therein. The head consists of a body part 95 which is in guiding contact with the bars 92 and 93,-and which is perforated for a stem 97. A lever 98, pivoted asat 99, and slotted as at 100, engages said stem 97 to move the head. The upper end of the lever 98 is provided'with a roller 101, which engages asmuous cam 102, carried on [the shaft 67. The arrangement of the cam,

102,- is such that at each revolution of the shaft 67 the head 94 is moved across the top of. the blank to engage the tape and re turned to its normal position, carrying the tape with it. The tape 60 passes through a perforation made through the base of the standard 77. and is left in position, by the cutting knife, as shown in Fig. 17, for engagement with the tape-moving head 95. The stem 97 carries on its inner end a cross bar 103, that is held normally in contact with the head 95 by means of the spring 104. When the head 95 is moved over toward the position shown in Fig. 17 by the cam 102, and when in close proximity with the end of the tape 60, the clamping mechanism, ,carried by the head, is opened for reception of the tape just before the head arrives at said position, in the following manner:

A lever 105 is pivoted,as at 106, to projections .107, from the standard 77. A cam 108 is secured to the shaft 67 and the upper end of the lever 105 is within the path of the cam 108, so that when the cam is brought under the upper end of the lever 105 its upper end is thereby moved laterally inoutward direction, and the lower end 109 is moved inwardly, and as the lower end 109 is immediately over the end of the stem' 97 the cross bar 103, connected to the said stem is moved thereby into the position shown in Fig. 20, so as to permit the tape 60 to be in-' cluded between the head 95 and the crossbar 103. Before the head 95 starts back on its return excursion, carrying the tape 60 with it, the cam 108 has moved from under the upper end of the lever 105 and therefore the tape 60 will be clamped by operation of the spring 104' and firmly held between the cross-bar 103 and the head 95, then as the cam 102 moves the lever 98 back to its normal position the head carries the tape 60 with it. A similar lever 105 is operated by its cam 108 to release the tape from clamp 103.

It is assumed that the spool-driving mechanism hasunwound a sufiicient amount of tape to permit the free movement thereof without the necessity of rotating the s 001 by the operation of the moving head. .uring the return movement of the tape-carrying head the tape will be caused to pass over a pivoted slack producing finger 110, which is secured on the shaft 111, which shaft finds bearings in the rearwardly-extending projections 111 from the vertical standards 76 and 77. Before the tape is released by the head, the finger 110 is raised in order to raise the tape 60 andthereby provide sufficient slack or length of tapebetween the points where it contacts with the pail for a convenient bail or handle. The finger 110 is raised at this time b meansof a earn 112 secured to the shaft 6 and connected to a projection 113 on the shaft 111 by means of a rod 114. The general form and arrangement of the cam 112 is more clearly shown in Fig. 25, wherein is shown the termination of the rod 114 to be of rectangular form to supply a co-acting cam-part with the cam 112. When the finger 110 is lifted a portion of it will pass up through the slot 115 in the head 83. While the finger 110 is in raised position a vertical clamp bar 116 is depressed by cam'121 to clamp the tape against the table and the vertically reciprocatable knife 116 severs the tape. asat 117 in Fig. 17. The knife-116 shears the tape by its contact with the projection 59 from the table 35. The knife 116 is connected to a vertically reciprocatable bar 118, held in elevated position by means of a spring 119 and a collar 120 secured thereto. A cam 121 depresses the knife 116 at the proper time and the spring 119 returns the bar 118 and the knife 116 as soon as its tape cutting function has been per-.

formed. The knife 116 severs the tape after the yielding presser feet 87 and 88 have been brought into contact with the blank.

and before the tape inserters 122 and. 123

have been brought into contact with the 122 and 123 will be brought in touch therewith. The threaders are each notched as shown in Fig. 20, each tapered edge being somewhat sharp so as to readily perforate the blank. They are tapered inwardly so as not to tear or injure the blank and for the purpose of directing the tape through the perforations made thereby. The threaders are located, as shown in Fig. 20 immediately above the tape, the tape being severed a short distance from either side of the' respective threader. When the threaders are passed through the blanks the tape ends are carried therewith and said ends remain on the opposite side of the blank when the threaders are withdrawn. When the head 83 is raised the presser feet 87 and 88, by virtue of the springs 90 remain in contact with the blank until after the threaders 122 and 123 have been withdrawnand the projecting ledges 59 around the channel 58 prevent the longitudinal edges of the blank from rising out of the channel in which the blank is contained. The threaders 122 and 123 pass into openings or depressions 124 made in the body portion of the table 35 and the ends of the tape are carried into these openings.

While the blank is being taped, in the manner heretofore described, other portions of it are having glue applied thereto by an instrumentality which I will now point out, (Fig. 16): Secured to the table 35 is an angularly disposed bracket 125 carrying a fixed head 125'. Secured in this head is .a reciprocatable head 126 having glue-applying feet 127 and 128 on each side of its vertical axis. The movable head is provided with a rack 129 which may be attached thereto, or may be a part thereof, adapted for geared relation with a gear segment 130 oscillatable upon a shaft 131 which finds bearing in the bracket 124 as moreclearly shown in Fig. 2. The gear segment 130 is oscillatable on the shaft 131 by means of an arm 132. Secured to the shaft 39 is a cam 133, which may be an integral part of the shaft 139, if desired, and a coiiperating rectangular cam portion 134 connected by arod 135 to the arm 132 so that as the shaft 139 is rotated the rod 135 will be vertically recip'rocated and the movable head 126 will be correspondingly reciprocated in the guiding stationary head 125. The cam 133 and its coacting strap or housing 134, is so fashioned as to permit a dwell between the reciprocations of the vertically reciprocatable head 126 substantially in the manner heretofore describedin connection with other cams. of similar character, 8013112113 when the head 126 is depressed it remains for some time in a depressed position and when it is raised it remains in its raised position but it never dwellsin any intermediate position. The cam, for performing this function, is more clearly shown in Fig. 22. When the-head126 occupies its raised position the glue-applying feet 127 'and 128 are in the path of a roller 136 connected to a reciprocatable rod 137. As the'roller 136 passes under the feet 127 and 128, being charged with the glue or other pastey material, it evenly distributes the material, with which it is charged. upon the lower surfaces of the said feet. A glue or paste receptacle 138 is secured below the reciprocating rod 137 and contains a glue distributing roller 139 secured to the shaft 140 which is rotated from the shaft 12 by means of the chain 111 and the sprocket gear wheels 142 and 143. An adjustable scraper 144 bears against the distributing roller 129 to vary the amount of glue that may adhere to the said roller. The quantity of glue permitted to adhere to the distributing roller 139 will be determined by the distance that the scraper 144 is maintained from contact with the said roller and this adjustment may be eifected by means of the screws 115 and 116, the scraper 114 being pivoted, as-at 117. the raising or lowering of the outer end of the said scraper will determine the distance of separation and the screws will maintain that distance fixedly.

Loose on the shaft 131 is an arm 150 secured to a geared segment 151. This segment has geared relation with the rack 137 that reciprocates the glue applying roller 136. An arm 152, pivoted as in 153, carries a roller 154 on its free end and bears upon a cam 155 that is driven by the shaft 39. The arm. 152 is connected to the arm 150 by means of a rod 156 and a spring 157 normally holds the roller 154 upon the cam. Vhen the cam is rotated the arm 152 is moved in a substantially vertical direction for the purpose of moving the arm 150. and thereby the segmental rack 151 to reciprocate the rod 137. from the position shown in full lines in Fig. 16 to the position shown in dotted lines, thereby applying'glue to the under surfaces of the feet 127, 128 of the vertically reciprocatable head 126. Between the glue applying feet 127. 128 in the head.

126 is a presser foot 159 which is connected to a stem 158 that passes upwardly above the head and is deflected as at 159 to provide an abutment for a pivoted lever 160. A similarly deflected part 161 is secured to the stationary head 125 and extends a little beyond the same plane with the end portions 159 and overlies the other end of the pivoted lever 160. The stem 158 carries a spring 162 which holds the foot 159 in downward position as shown in dotted lines in Fig. 16 or below the active surfaces of the glue applying feet 127, 128 when the head is moved downwardly from the position shown in Fig. 16. As soon as the head 126 is moved downwardly and the short end of the lever 160 is moved from contact with the projection 161 the spring 162 will cause the presser foot 159 to descend to a position below the glue applying feet 127, 128. and the presser foot 159 will be brought into contact with the upper surface of the blank therebelow above the surfaces of the to hold the blank in position when the glue applying feet are being withdrawn there- 163 which may be of any suitable yielding I material such as felt or the like so as to provide a more or less responsive surface upon which the blank rests at the time When the glue applying feet are brought into contact with the upper surface thereof.

The glue is applied to the blank, by the instrumentalit'y just described, at the same time that the tape is threaded through the proper portions thereof, the said operations taking place on different parts of the blank, that is to say, there is no glue applied to that portion of the blank through which the tape is threaded and therefore these oper ations may be simultaneously performed, and while these operations are taking place certain parts of the mechanism are held stationary while-other portions are being moved to perform the desired operations as the result of the peculiar formation of the cams and other parts, to which reference has heretofore been made. After these operations have taken place upon the blank, it is carried forward by the ear 51 upon the feed bar 47 and is caught by the folding apparatus. Upon the return of the feed bar theear 51 will pass under the freshly inserted blank. which has been moved to position by car 50, before the taping and gluing mechanism has made contact therewith readyto feed said blank when prepared to the folding mechanism which I will now describe.

Two vertically extending-standards 200 and 201 are secured to the base 31 by means of cap screws 202. These standards are properly spaced apart to permit the inclusion of the blank folding apparatus therebetween. Bearings 203 and 204 are provided in the upper ends of the said standards for a shaft 205.

An electric motor 206 is shown as a means for driving the power machine. This motor is shown directly connected to the shaft 205 but intermediate gearing may be employed if it is necessary in order to secure the correct speed of said shaft or other means for driving the machine may be used.

Secured to the standards 200 and 201 are fixed cam rings 207, 208, respectively, as by means of bolts 209 said'cam rings being provided with cam channels 210, 21l-in their respective confronting faces.

Blank folding mechanism, rotatable with the shaft 205 comprises a hub 212 secured to said shaft by the key 213. Radially extending from the hub are a plurality of hollow forming mandrel arms 214, said mandrel arms being substantially alike in every particular. The ends of the mandrels are rectangular and tapered, as at 215, around. which to fold the blank to form the pail. The mandrels are hollow, as at 216, for a purpose to be hereafter described. The hub 212 contains a cavity 217 communicating with a centrally disposed tube 218 one of which is inclosed within each of the mandrels.

Located upon the upper surface of the mandrel 215, when the mandrel is in position to receive the blank as shown in Fig. 1, is a finger arm 219, pivoted, as at 220, and held in raised position by means of av spring 221 and depressed by the short end 222 of the finger 219 bearing upon an enlarged portion 223 of the cam 208. The

shortend 2220f the fingercarries a roller 224 which, when it bears against the surface 223 of the cam 208 causes the extended end 225 of said finger to-be pressed downwardly to engage the blank 59 in the position in which it has been presented to the folding apparatus by means of the feed bar 47. A stop 226 is provided on the mandrel as a gage to which the forward edge of the blank is to be fed. The mandrels 215 are rotated in the direction shown by the arrow 228 in Fig. 1, and in the position shown one of the mandrels has just received a blank 59. As soon as this mandrel has been moved so that the roller 224 engages the large part 223 of, the cam 208, the extended end 225 of the finger 219 will be depressed downwardly projecting lugs 232 onits sides. These lugs are to form the corners around the angle of the forming head and the longitudinal projection 233, on each side of the head, perform the same function on the blank where the upper side joins the two vertical sides thereof.

As a blank 59 is presented to the head the end-laps 59 are ladened with glue and afterward are bent downwardly by means of fingers 234, which are bifurcated, as at 235, so as to contact with minimum surface of said glue bearing parts. There is one finger, 234, on each side of the head 230 secured thereto as by means of screws,as each side 59 of the blank is to be bent downwardly at the same time. The projecting lugs 232 operate j to foldover the parts 59 of the blank after the part 59 has been placed in proper position with reference to the mandrel by the fingers 234.

Mountedupon the head 230 is a downturned, axially movable, arm 23,7 carrying a roller 238 and having an inturned part 239. 4

. 215, the further movement of this portion of a blank being effected by the lower head,243.

The arm 229 bearing the upper head 230, is pivoted to the mandrel arm 214 as at 244, upon supports 245. The lower end of the arm 229 terminates in a gear segment 246, having geared relation with a longitudinally movable rack 247. This rack is a part of the axially movable rod 248, having bearings in the slot 249 made in the sides of said mandrel arm. The rod 248 fits loosely in the slot 249, so as to be easily reeiprocated therein and is secured to blocks 250 within the interior of the hollow mandrel, as by means of screws 251, to prevent lateral displacement of the rod. When the rod 248 is moved inwardly and outwardly it is v manifest that the head 230 will be lowered and raised therebyaccordingly. The rod carries a roller 252, on its inner end. said roller is contained in the cam channel 211 of the cam ring 208. Now it is evident that when a given arm 214, carrying the forming mandrel 215, moves upwardly in the direction of the arrow 228, as shown in Fig. 1, from the position which it occupied when the blank 59 was presented to it, that the rod 248 will be moved inwardly by means of the roller 252 in the cam channel 211, and when the rod 248 is moved inwardly it causes the rack 247, connected to the end thereof, to move the .geared segment 246 in such way as to bring the head 230 down into contact with its forming mandrel 215 and thereby to downwardly fold the end flaps 59 of the blank and the bottom part 59 and when the end plate 231 is brought into place the end tabs 59 are folded over on top of the glued surfaces 59', the upper surface of the tabs 59 also bearing glue. 7

cause the projection 239 to deflect the part 59 upwardly, to place the blank in proper position for contact with the lower forming head 243.

Secured to the lower surface of each of the arms 214, which bear the forming mandrels 215 is an arm 256 pivoted, as at 257,

to the rotating arm 214 and which carries on its outer end a forming head 243. The major portion of the forming head consists of the wall part 258 and angularly disposed integral wall parts 259 and 2601 Slidable in the walls 259 and 260 are jaws 261 and 262 for intimate contact with the blank of which the pail is to be constructed. These jaws are slidable in the walls 259 and 260 upon stems 263 and 264, respectively. These stems each carry a head 266, respectively in each of which is a roller 267 freely rotatable upon the axis 268, the heads being yieldingly pressed outwardly by springs 269.

A gear segment 270 joins the arm 256 at or near the pivotal point 257. The segment 270 has geared relation with a rack 271 which is an extended part of the reciprocatable rod 272. This rod bears on its inner end a roller 273 that is contained in the cam channel 210 of the cam ring 207. When the rod 272 is pushed outwardly the lower folding head 243 is moved upwardly into position shown in full lines in Fig. 10, its extended or open position being shown in dotted lines in the same figure. In its upward movement the jaws 261 and 262 are brought into contact with the parts 59 of the blank and said parts are folded up wardly after which the jaws 261 and 262 are pushed inwardly until the various interlapped portions of the blank,-being glue laden, are-pressed firmly with considerable pressure into contact relation by means now about to be described.

Just about the time the roller 238 leaves contact with the tongue 253, at point 255, the roller 252 of the reciprocatable rod 248 controlling the head 230, is pushed outwardly by the cam. channel 211 as at 211 and by this means the rack 247, being pushed outwardly, the head 230 is raised from con tact with the blank and substantially simultaneously with this movement the roller 273, of the cam channel 210, which controls the lower folding head 243, is drawn inwardly by the part 210 of said cam channel and the lower folding head 243 is thereby raised, and in raising, folds the parts 59, which have been previously deflected (together with side 59) by the projection 239 on the arm 237, intointimate contact with its other members on theforming mandrel 215. The lower folding head is held in operative position with the forming mandrel, by the op eration of the cam 211 in the manner heretofore described during the greater part of the" succeeding revolution. As soon as an operative position, with reference to the forming mandrel 215, during the time when the rotating arm 214 is between the stationary segmental cams and until the rollers have passed free from contact with said segmental cams. cam roller, 27 3, has been pushed outwardly, by the portion 286 of the cam 211, thereby to cause the withdrawal of the head 243 from operative position, shown in full lines in Fig. 10, to inoperative position shown in dotted lines therein.

Curved projections 287 are secured to the upper surfaces of the laterally movable clamping jaws 261, 262, to pass under a portion of the head 230 and over the angular surface of the forming mandrel so that the friction, exerted between the rollers 267 and the coiiperating cams 280 and 281, will not be suflicient to remove the lower forming head from its operative position. 7

After the pail has been formed, in the manner heretofore described, it becomes'necessary to remove it from the forming mandrel and this I accomplish in an automatic manner by means of compressed air conveyed to the device through the conducting pipe 290, secured to standard 201, and adapted for communication with the interior of pipes 218, within the mandrel arms 214. Each of the arms is provided, in the hub 212,.with a cavity 217 and a port 291 and the hub 212 is provided on its side face, near each cavity 217, with a lateral projection 292.

Secured on to the end of the air pipe 290 is' a valve 293 comprising a disk 294 fixed to a hollow stem 295, in a block 296, that is screw threaded in the ends of the pipe 290. The upper end of'the stem 295, is provided with a nut 297 against which a spring 298 abuts the other end of the spring finding support upon the block 296. By this means the disk 294 is yieldingly held in its most inward position. A port 299 isprovided in the block 296 which port registers with a port 300 in the stem 295 so that when the disk is in the position shown in Fig. 5 the portsare closed but when the disk is in its most outward position the ports register About the same time the and permit air to pass from the interior of the pipe 290. through the hollow stem '29?) and out through an orifice 293 in the center of the disk 294. As the arms 214, of the 

